76839140 has 24 divisors (see below), whose sum is σ = 184414272. Its totient is φ = 26344800.

The previous prime is 76839131. The next prime is 76839179. The reversal of 76839140 is 4193867.

It is a junction number, because it is equal to n+sod(n) for n = 76839094 and 76839103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274286 + ... + 274565.

It is an arithmetic number, because the mean of its divisors is an integer number (7683928).

Almost surely, 2^76839140 is an apocalyptic number.

76839140 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

76839140 is an abundant number, since it is smaller than the sum of its proper divisors (107575132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76839140 is a wasteful number, since it uses less digits than its factorization.

76839140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548867 (or 548865 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 76839140 is about 8765.7937461476. The cubic root of 76839140 is about 425.1356245354.

The spelling of 76839140 in words is "seventy-six million, eight hundred thirty-nine thousand, one hundred forty".